[INFO] cloning repository https://github.com/garethellis0/advent-of-code-2019
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/garethellis0/advent-of-code-2019" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgarethellis0%2Fadvent-of-code-2019", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgarethellis0%2Fadvent-of-code-2019'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c71403f3a9496c34c6faf323b54d33f9d2b3184d
[INFO] building garethellis0/advent-of-code-2019 against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgarethellis0%2Fadvent-of-code-2019" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/garethellis0/advent-of-code-2019 on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/garethellis0/advent-of-code-2019
[INFO] finished tweaking git repo https://github.com/garethellis0/advent-of-code-2019
[INFO] tweaked toml for git repo https://github.com/garethellis0/advent-of-code-2019 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/garethellis0/advent-of-code-2019 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4eef806905096cbbf077d87656877180ee4e0dd55ae8acd3bc967084e8677757
[INFO] running `Command { std: "docker" "start" "-a" "4eef806905096cbbf077d87656877180ee4e0dd55ae8acd3bc967084e8677757", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4eef806905096cbbf077d87656877180ee4e0dd55ae8acd3bc967084e8677757", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4eef806905096cbbf077d87656877180ee4e0dd55ae8acd3bc967084e8677757", kill_on_drop: false }`
[INFO] [stdout] 4eef806905096cbbf077d87656877180ee4e0dd55ae8acd3bc967084e8677757
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dtail-expr-drop-order" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f18f93a035cdeafe9127bfe905cd5c411ff7d266ff5f90e1fe4ef98a8fdfc581
[INFO] running `Command { std: "docker" "start" "-a" "f18f93a035cdeafe9127bfe905cd5c411ff7d266ff5f90e1fe4ef98a8fdfc581", kill_on_drop: false }`
[INFO] [stderr]    Compiling advent-of-code-2019 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0463]: can't find crate for `itertools`
[INFO] [stdout]  --> src/bin/day_4/main.rs:1:14
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[macro_use] extern crate itertools;
[INFO] [stdout]   |              ^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]  --> src/bin/day_4/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | /     /// Convert the given integer into an vector of integers
[INFO] [stdout] 6 | |     /// Example: `1234` -> `{1, 2, 3, 4}`
[INFO] [stdout]   | |_________________________________________^
[INFO] [stdout] 7 |
[INFO] [stdout] 8 |       let mut result = Vec::new();
[INFO] [stdout]   |       ---------------------------- rustdoc does not generate documentation for statements
[INFO] [stdout]   |
[INFO] [stdout]   = help: use `//` for a plain comment
[INFO] [stdout]   = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/bin/day_3/main.rs:96:51
[INFO] [stdout]    |
[INFO] [stdout] 96 |             Orientation::UpDown => curr_cell.y += (segment.length),
[INFO] [stdout]    |                                                   ^              ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 96 -             Orientation::UpDown => curr_cell.y += (segment.length),
[INFO] [stdout] 96 +             Orientation::UpDown => curr_cell.y += segment.length,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/bin/day_3/main.rs:97:54
[INFO] [stdout]    |
[INFO] [stdout] 97 |             Orientation::LeftRight => curr_cell.x += (segment.length),
[INFO] [stdout]    |                                                      ^              ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 97 -             Orientation::LeftRight => curr_cell.x += (segment.length),
[INFO] [stdout] 97 +             Orientation::LeftRight => curr_cell.x += segment.length,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/bin/day_3/main.rs:133:12
[INFO] [stdout]     |
[INFO] [stdout] 133 |         if ((leftright.start_point.y > updown_min_y) && (leftright.start_point.y < updown_max_y)) {
[INFO] [stdout]     |            ^                                                                                    ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 133 -         if ((leftright.start_point.y > updown_min_y) && (leftright.start_point.y < updown_max_y)) {
[INFO] [stdout] 133 +         if (leftright.start_point.y > updown_min_y) && (leftright.start_point.y < updown_max_y) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/bin/day_3/main.rs:138:16
[INFO] [stdout]     |
[INFO] [stdout] 138 |             if ((updown.start_point.x > leftright_min_x) && (updown.start_point.x < leftright_max_x)) {
[INFO] [stdout]     |                ^                                                                                    ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 138 -             if ((updown.start_point.x > leftright_min_x) && (updown.start_point.x < leftright_max_x)) {
[INFO] [stdout] 138 +             if (updown.start_point.x > leftright_min_x) && (updown.start_point.x < leftright_max_x) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/bin/day_3/main.rs:156:16
[INFO] [stdout]     |
[INFO] [stdout] 156 |             if (path1 != path2) {
[INFO] [stdout]     |                ^              ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 156 -             if (path1 != path2) {
[INFO] [stdout] 156 +             if path1 != path2 {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `while` condition
[INFO] [stdout]    --> src/bin/day_3/main.rs:194:15
[INFO] [stdout]     |
[INFO] [stdout] 194 |         while (length > 0) {
[INFO] [stdout]     |               ^          ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 194 -         while (length > 0) {
[INFO] [stdout] 194 +         while length > 0 {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/bin/day_3/main.rs:242:8
[INFO] [stdout]     |
[INFO] [stdout] 242 |     if (wires_result.len() != wires.len()) {
[INFO] [stdout]     |        ^                                 ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 242 -     if (wires_result.len() != wires.len()) {
[INFO] [stdout] 242 +     if wires_result.len() != wires.len() {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `while` condition
[INFO] [stdout]   --> src/bin/day_2/main.rs:35:18
[INFO] [stdout]    |
[INFO] [stdout] 35 |             while(i < data.len()){
[INFO] [stdout]    |                  ^              ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 35 -             while(i < data.len()){
[INFO] [stdout] 35 +             while i < data.len() {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/bin/day_2/main.rs:58:16
[INFO] [stdout]    |
[INFO] [stdout] 58 |             if (data[0] == 19690720){
[INFO] [stdout]    |                ^                   ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 58 -             if (data[0] == 19690720){
[INFO] [stdout] 58 +             if data[0] == 19690720 {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> src/bin/day_1/main.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{Write, BufReader, BufRead, Error};
[INFO] [stdout]   |               ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread::current`
[INFO] [stdout]  --> src/bin/day_1/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::thread::current;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `while` condition
[INFO] [stdout]   --> src/bin/day_1/main.rs:31:23
[INFO] [stdout]    |
[INFO] [stdout] 31 |                 while (current_fuel > 0) {
[INFO] [stdout]    |                       ^                ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 31 -                 while (current_fuel > 0) {
[INFO] [stdout] 31 +                 while current_fuel > 0 {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/bin/day_1/main.rs:33:24
[INFO] [stdout]    |
[INFO] [stdout] 33 |                     if (current_fuel > 0){
[INFO] [stdout]    |                        ^                ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 33 -                     if (current_fuel > 0){
[INFO] [stdout] 33 +                     if current_fuel > 0 {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/bin/day_3/main.rs:90:21
[INFO] [stdout]    |
[INFO] [stdout] 90 |                 Err(e) => return Err(format!("Failed to get length from: {}", length_str))
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/bin/day_2/main.rs:22:17
[INFO] [stdout]    |
[INFO] [stdout] 22 |             Err(e) => return Err(String::from("Int parsing failed!")),
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `result`
[INFO] [stdout]   --> src/bin/day_4/main.rs:51:13
[INFO] [stdout]    |
[INFO] [stdout] 51 |     let mut result = false;
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/day_4/main.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |     let mut result = false;
[INFO] [stdout]    |         ----^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/bin/day_3/main.rs:277:13
[INFO] [stdout]     |
[INFO] [stdout] 277 |         Err(e) => Err(String::from("Failed to open file"))
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `manhatten_distance` is never used
[INFO] [stdout]    --> src/bin/day_3/main.rs:176:4
[INFO] [stdout]     |
[INFO] [stdout] 176 | fn manhatten_distance(cell: &Cell) -> i32 {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/day_2/main.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let mut split = str.split(",");
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `closer_cell` is never used
[INFO] [stdout]    --> src/bin/day_3/main.rs:180:4
[INFO] [stdout]     |
[INFO] [stdout] 180 | fn closer_cell<'a>(cell1: &'a Cell, cell2: &'a Cell) -> &'a Cell {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `segmentsIntersection` should have a snake case name
[INFO] [stdout]    --> src/bin/day_3/main.rs:106:4
[INFO] [stdout]     |
[INFO] [stdout] 106 | fn segmentsIntersection(seg1: &PathSegment, seg2: &PathSegment) -> Option<Cell> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `segments_intersection`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `findIntersections` should have a snake case name
[INFO] [stdout]    --> src/bin/day_3/main.rs:150:4
[INFO] [stdout]     |
[INFO] [stdout] 150 | fn findIntersections(paths: Vec<&Path>) -> Vec<Intersection> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `find_intersections`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `wireLengthToPoint` should have a snake case name
[INFO] [stdout]    --> src/bin/day_3/main.rs:189:4
[INFO] [stdout]     |
[INFO] [stdout] 189 | fn wireLengthToPoint(cell: &Cell, path: &Path) -> i32 {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `wire_length_to_point`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `cumulativeWireLength` should have a snake case name
[INFO] [stdout]    --> src/bin/day_3/main.rs:217:4
[INFO] [stdout]     |
[INFO] [stdout] 217 | fn cumulativeWireLength(inter: &Intersection) -> i32 {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `cumulative_wire_length`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/day_1/main.rs:29:16
[INFO] [stdout]    |
[INFO] [stdout] 29 |             Ok(mut i) => {
[INFO] [stdout]    |                ----^
[INFO] [stdout]    |                |
[INFO] [stdout]    |                help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/day_2/main.rs:39:29
[INFO] [stdout]    |
[INFO] [stdout] 39 |                         let mut target_index = data[i+3] as usize;
[INFO] [stdout]    |                             ----^^^^^^^^^^^^
[INFO] [stdout]    |                             |
[INFO] [stdout]    |                             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/bin/day_1/main.rs:56:21
[INFO] [stdout]    |
[INFO] [stdout] 56 |                 Err(e) => println!("Int parsing failed"),
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/day_2/main.rs:40:29
[INFO] [stdout]    |
[INFO] [stdout] 40 |                         let mut operand_index_1 = data[i+1] as usize;
[INFO] [stdout]    |                             ----^^^^^^^^^^^^^^^
[INFO] [stdout]    |                             |
[INFO] [stdout]    |                             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/day_2/main.rs:41:29
[INFO] [stdout]    |
[INFO] [stdout] 41 |                         let mut operand_index_2 = data[i+2] as usize;
[INFO] [stdout]    |                             ----^^^^^^^^^^^^^^^
[INFO] [stdout]    |                             |
[INFO] [stdout]    |                             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/day_2/main.rs:45:29
[INFO] [stdout]    |
[INFO] [stdout] 45 |                         let mut target_index = data[i+3] as usize;
[INFO] [stdout]    |                             ----^^^^^^^^^^^^
[INFO] [stdout]    |                             |
[INFO] [stdout]    |                             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/day_2/main.rs:46:29
[INFO] [stdout]    |
[INFO] [stdout] 46 |                         let mut operand_index_1 = data[i+1] as usize;
[INFO] [stdout]    |                             ----^^^^^^^^^^^^^^^
[INFO] [stdout]    |                             |
[INFO] [stdout]    |                             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/day_2/main.rs:47:29
[INFO] [stdout]    |
[INFO] [stdout] 47 |                         let mut operand_index_2 = data[i+2] as usize;
[INFO] [stdout]    |                             ----^^^^^^^^^^^^^^^
[INFO] [stdout]    |                             |
[INFO] [stdout]    |                             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/bin/day_2/main.rs:103:13
[INFO] [stdout]     |
[INFO] [stdout] 103 |         Err(e) => Err(String::from("FAILED TO READ FILE!")),
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part1` is never used
[INFO] [stdout]  --> src/bin/day_1/main.rs:6:4
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn part1(f: &File) -> Result<i64, ParseIntError> {
[INFO] [stdout]   |    ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `advent-of-code-2019` (bin "day_4") due to 1 previous error; 3 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: function `parseInstructionsAndData` should have a snake case name
[INFO] [stdout]   --> src/bin/day_2/main.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn parseInstructionsAndData(str: String) -> Result<(), String> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `parse_instructions_and_data`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `readIntcodeProgram` should have a snake case name
[INFO] [stdout]   --> src/bin/day_2/main.rs:73:4
[INFO] [stdout]    |
[INFO] [stdout] 73 | fn readIntcodeProgram(f: &File) -> Result<(), String> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `read_intcode_program`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/bin/day_2/main.rs:105:13
[INFO] [stdout]     |
[INFO] [stdout] 105 |             readIntcodeProgram(&f);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 105 |             let _ = readIntcodeProgram(&f);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f18f93a035cdeafe9127bfe905cd5c411ff7d266ff5f90e1fe4ef98a8fdfc581", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f18f93a035cdeafe9127bfe905cd5c411ff7d266ff5f90e1fe4ef98a8fdfc581", kill_on_drop: false }`
[INFO] [stdout] f18f93a035cdeafe9127bfe905cd5c411ff7d266ff5f90e1fe4ef98a8fdfc581